Eating Disorders A Hidden Killer

Transcription

1 Eating Disorders A Hidden Killer Scott K. Bullock M.S.W., LISW-S, CEDS Clinical Director/Family Therapist Child and Adolescent Services Harold C. Schott Eating Disorder Foundation Founder/Director PROXIMI Program Clinical Instructor Department of Psychiatry, University of Cincinnati

2 Brazilian Model, Battling Anorexia Dies, 11/14/06 Cause of death = generalized infection 21-year-old 88 pounds, 5 8 BMI= 13.4

3 You cannot be too rich or too thin. Wallace Simpson

4 DSM V Classification of Eating Disorders Anorexia nervosa (AN) Restricting subtype Binge/ Purge subtype Bulimia nervosa (BN) Binge Eating Disorder (BED) ARFED NOTE: OBESITY is not classified as an eating disorder.

5 Examples: (OSFED) Atypical Anorexia Nervosa Bulimia Nervosa (low frequency or limited duration) Binge-eating disorder (low frequency or limited duration) Purging disorder Night eating syndrome

6 Anorexia Nervosa - Introduction Anorexia is a life threatening psychiatric illness. Highest mortality rate among psychiatric illnesses. Usually begins in adolescence but can present clinically from ages Incidence in pre pubertal onset cases increasing Anorexia is a chronic ego syntonic illness (the patient does not see this as an illness but rather as a part of self)

7 Diagnostic Criteria for AN Loss of weight to less than 85% of healthy norms or failure to grow leading to body weight less than 85% of normal Intense fear of gaining weight Disturbed attitude toward weight and shape Amenorrhea for 3 months (In DSM-V no longer criteria for diagnosis)

8 2 Types of AN DSM V criteria for AN Restricting Type Person does not engage in bingeeating or purging behavior Binge-Eating/Purging Type Person engages in binge-eating and purging behavior (selfinduced vomiting, use of laxative, diuretics, enemas)

9 The etiology of eating disorders is multifactorial Biology/Genetics Psychologic traits/temperament Social factors Treatment must be focused on all three areas.

10 Understanding the cause, one at a time. Biology/Genetics

11 A.N. Cause Genetics Family studies 7 to 12 fold increase in prevalence of A.N. and B.N. in relatives of eating disorders compared to control families. High heritability in twin studies - The concordance for AN in monozygotic twins is approximately 10X greater than for dizygotic twins There is likely a genetic contribution to temperamental / personality vulnerabilities

12 A.N. Cause Biochemical - Serotonin Increased serotonergic activity (with post synaptic up regulation) has been linked to the onset, persistence and recurrence of AN Activation of serotonin in rodents reduces food consumption High serotonin levels associated with low impulsivity, rigidity, perfectionism Blockade or decrease in serotonin causes an increase in food consumption Diet regulation is a way to modulate the 5 HT pathway Starvation leads to decreased dietary tryptophan, a precursor to 5 HT. In starvation, serotonin production is decreased.

13 A.N. Cause Genetic Biologic vulnerabilities Overactive dopamine receptors in the reward center (nucleus accumbens). Supports an addiction model for treatment interventions Journal of Biological Psychiatry; July Guido Frank, et al.) Hypothalamic pituitary gonadal axis abnormalities? Uncertain which comes first. 20% of anorexics lose their periods before they have lost ANY weight Suggests a brain/endocrine role. Ongoing research regarding the role of other biologic contributors.

14 Next, Biologic/Genetic Psychologic/ Temperament

15 A.N Cause Psychological Vulnerabilities Children with AN tend to be: Anxious (most common premorbid psychiatric dx) Perfectionistic History of being well behaved Conscientious High achieving Popular Successful Difficulty expressing negative emotions Low self esteem, poor self image

16 A.N. Cause- Psychological Functional roles: Attempt to Prolong Childhood Escape Responsibilities of Adulthood Provide escape from upsetting life events or developmental issues Societal pressure to be thin Feels special Nothing tastes as good as thin feels

17 Last, Biologic/ Genetic Psychologic/ Temperament Social/ Cultural

18 Societal Influences - Over The Years

19 A.N. Cause Social / Media Influences Fashion and entertainment industries send message thin = success An average U.S. child sees more than 30,000 TV commercial each year (TV- Turnoff Network, 2005). Survey done in April 2002, 32% of female TV network characters are underweight, while only 5% of females in the U.S. audience are underweight.

20 This is an ILLNESS not a choice. For vulnerable people, the main thing to understand is that It works! The thrill of weight loss and control of food feels good! Anxiety is reduced as control is increased.

21 Clinical Diagnosis- Anorexia Nervosa History Denial of illness Denial of significance of weight loss Excessive exercise Fatigue, headaches Abdominal discomfort Hair loss Cold intolerance Fracture with minimal trauma Amenorrhea Intense fear of obesity despite very low body weight Insomnia

22 Physical Complications of Starvation The Top Six Bradycardia Hypotension Hypothermia Osteoporosis Constipation Amenorrhea

23 Clinical presentation - physical signs and symptoms of AN Wasting Cardiovascular Orthostatic, bradycardia, mitral valve prolapse, diminished exercise capacity Skin - yellow (carotenodermia), lanugo, dry skin, pruritus', thinning hair, brittle nails GI - constipation, delayed gastric emptying/bloating Endocrine and metabolic - Amenorrhea, osteoporosis, hypothermia

24 Behavioral signs and symptoms related to starvation depression preoccupation with food food hoarding slow eating binge eating mood labiality/ irritability apathy decreased libido sleep disturbance social withdrawal This can LOOK just like MDD affects cognitive functioning, motivation for recovery, ability to participate in treatment, etc.

25 Detection of Anorexia Nervosa Ask yourself - Could this patient have A.N.? Patients are often seen in Primary Care setting for nonspecific symptoms - fatigue, stomach upset, constipation, stress fractures, depression Family members may bring in patient. The patient may be in your office under protest, feeling coerced. They may enter prepared to do battle. They do not want to gain weight.

26 Screening Questions What did you eat yesterday? Do you ever binge eat (eat more than you want) or use diuretics, laxatives or diet pills? Do you think you are thin? How do you feel about your hips/thighs/legs. If suspicious of A.N., ask about previous weight, weight loss pattern, menstrual history, daytime hyperactivity, insomnia, and exercise habits When problem is identified, quantify the severity by clinical features and by % IBW and BMI

27 SCOFF questions Do you make yourself sick because you feel uncomfortably full? Do you worry that you have lost control over how much you eat? Have you recently lost more than one stone (14 pounds) in a 3 month period? Do you believe yourself to be fat when others say you are too thin? Would you say that food dominates your life? Each yes = 1 point; a score of 2 points indicates a likely diagnosis of AN

28 Complications of Self Induced Vomiting Electrolyte disturbance (low K+, high CO2) Catastrophic GI trauma (rare) Myopathy, Cardiomyopathy (Ipecac) Dental complications Parotid hypertrophy

29 Medical Complications Osteoporosis = the one serious sequelae that may not be reversible Common and associated with high fracture risk Mechanisms thought to be related to: Amenorrhea Malnutrition Excessive exercise High cortisol levels Psychogenic stress Primary treatment is nutritional rehab/weight restoration Second line treatment = Vitamin and Calcium Estrogen supplementation is not effective Consider bisphosphonates, nasal calcitonin for cases of frank osteoporosis or severe osteopenia

30 Treatment Weight gain is the only definitive treatment. Initial feedback : Give clear prescription to stop losing weight. Give specific calorie intake prescription and/or refer to dietician Educate patient how psychiatric, medical and nutritional components of her disease have worked together to get her where she is and treatment will consist of care from providers in all three areas. Much better prognosis if treatment is instituted before patient becomes severely underweight. Psychotherapy is much more effective after weight is restored.

31 For more help and information: The Lindner Center of HOPE Harold C. Schott Foundation Eating Disorder Program (513) 536-HOPE